second hand storage heaters

amtrakuk

Im abit confused. Can someone please ask if my calculations are right.

A 3.5 KW storage heater would be "charging" for 7 hours a day using 24.5 Units (3.5 * 7 = 24.5). At 4p / unit that will come to 98p a day or £88.20 a quarter. If I have 4 heaters in my end terrace (Front room, Kitchen, Bedroom and Boxroom) that will be nearly £4 a day to heat?

At the moment Im running a 3Kw convector with thermostat. Based on it being being on 1/3 the time and standard rate being 18p/unit. 1kw (1/3 of a 3 kw) * 7 hours = £1.26. 4 of these heaters work out at about £5 a day.

Cardew

amtrakuk wrote: »

Im abit confused. Can someone please ask if my calculations are right.

A 3.5 KW storage heater would be "charging" for 7 hours a day using 24.5 Units (3.5 * 7 = 24.5). At 4p / unit that will come to 98p a day or £88.20 a quarter. If I have 4 heaters in my end terrace (Front room, Kitchen, Bedroom and Boxroom) that will be nearly £4 a day to heat?

At the moment Im running a 3Kw convector with thermostat. Based on it being being on 1/3 the time and standard rate being 18p/unit. 1kw (1/3 of a 3 kw) * 7 hours = £1.26. 4 of these heaters work out at about £5 a day.

1. The 4 storage heaters are unlikely to all need 7 hours full charge.

2. 18p a unit is for Tier 1 rates. You need to use Tier 2 rates which are probably around 10p to 12p a unit.

amtrakuk

Thanks Cardew. just checked my tariff, my T1 is 17.772, my T2 is 9.910.

Im not verse on Storage heaters, as you say they are probably the most efficient way of heating with electric. As you prob know Im using convector heaters at the moment and I gather you have had had experience of them. As Im in the house typically from about 17:30 and stay up until about 11, would you say Storage Heaters are a viable option for me over convection heaters?

Cardew

amtrakuk wrote: »

Thanks Cardew. just checked my tariff, my T1 is 17.772, my T2 is 9.910.

Im not verse on Storage heaters, as you say they are probably the most efficient way of heating with electric. As you prob know Im using convector heaters at the moment and I gather you have had had experience of them. As Im in the house typically from about 17:30 and stay up until about 11, would you say Storage Heaters are a viable option for me over convection heaters?

To answer that question there are several factors you would need to take into consideration.

Firstly, as you pay extra for all your daytime electricity, you have to set that extra spend against your savings on Economy 7.

Don't forget if you have an immersion heater, your water will be heated on E7 and you can run other appliances on E7 by using a timer.

I understand that modern storage heaters do retain the heat far better than older heaters - although I have no experience using them - so should cope with providing heat until 11pm.

Overall I would estimate that storage heaters will be cheaper than using convector heaters.

paceinternet

It would be useful if you could ask the storage heater manufacturers and suppliers to tell you what capacity would be available from 17.00 to 23.00 hrs and how many kwh it will take to recharge them during the following E7 period.

Also keep in mind that your calculation implies you will only use 7 kwh to heat the room with std hrs convector heaters. Your E7 scenario implies you have 24.5 kwh available.
There will no doubt be some E7 leakage during the day, but you need to decide what the real comparison is.

amtrakuk

Thanks... The 4p/unit does sound too good to miss out on. As you say timers for Appliances is easily sorted. Looking at my figures Im using about 10 units a day during summer periods but that rockets to about 40 units a day during the winter months with the heating on. (40 * 9p = £3.60) Thats just heating the front room and kitchen comfortably with the boxroom on low and bedroom overnight.

amtrakuk

paceinternet wrote: »

It would be useful if you could ask the storage heater manufacturers and suppliers to tell you what capacity would be available from 17.00 to 23.00 hrs and how many kwh it will take to recharge them during the following E7 period.

Also keep in mind that your calculation implies you will only use 7 kwh to heat the room with std hrs convector heaters. Your E7 scenario implies you have 24.5 kwh available.
There will no doubt be some E7 leakage during the day, but you need to decide what the real comparison is.

Good Idea. Will get onto dimplex and ask them. Thanks

amtrakuk

Just been on the phone to eon. They will fit an E7 meter for £50 and the tarrif doesn't sound to drastic.

T1 - 18.680
T2 - 12.720
E7 - 4.820

Next job is to speak to Dimplex about real figures on heat retention